Define motion. Give 3 the laws of motion.

Definition of Motion:

A body is said to be at motion if it changes its position with respect to its surroundings.

First Law of Motion:

A body continues its state of rest or uniform motion in a staight line provided no net force acts on it.

Second Law of Motion:

When a net force acts on a body, it produces acceleration in the body in the direction of the net force.

Third Law of Motion:

To every action there is always an equal but opposite reaction.

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uranium fissions/breaks up giving out energy and neutrons

layers of the earth affect the waves and these effects are seen on instruiments such as seimometers